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BH7775K Datasheet(PDF) 11 Page - Rohm

Part # BH7775K
Description  VCR audio signal processing system
Download  17 Pages
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Manufacturer  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

BH7775K Datasheet(HTML) 11 Page - Rohm

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Video ICs
BH7775K
[NORMAL PB AMP] (INPUT: NA HEAD IN, OUTPUT: LINE OUT)
[EQ SWITCH]
[PNR ENCODE MODE]
[PNR DECODE MODE]
Encode output level
Compression characteristic
Encode distortion
Output residual noise
Output voltage level
Expansion characteristic
Time constant setting resistor
Output voltage level
Distortion
Output residual noise
Open loop gain
(PB PRE AMP)
REC FB resistance SP
REC FB resistance EP
REC EQ resistance
PB EQ SW impedance
HEAD EQ SW impedance
RHS control current
RHS control leakage current
[RHS CONTROL]
GVPBNOR
VOPSN
THDPBN
VONPBN
RREC SP
RREC SP
RREC EQ
REQ PB
REQ HEAD
IIN RHS
IL RHS
CMP
EXP
RDET
THDEND
VONEC
VODEC
VOENC
58.0
– 13.4
8.3
40.7
0.83
98
– 26.4
– 52.4
5.10
– 11.2
– 17.0
66.7
– 11.6
0.19
– 63.6
10.0
49.0
1.00
25
29
118
– 24.7
– 50.2
6.15
0.17
– 56.5
– 9.4
– 15.7
– 9.8
0.40
– 55.0
11.7
57.3
1.17
50
50
140
1
– 23.0
– 48.0
7.20
0.37
– 51.5
– 7.6
– 14.4
dB
dB
%
dBV
k
k
k
µA
µA
dB
dB
k
%
dBV
dBV
dBV
VIN = – 15.7dBV
Input condition 1
TU input VIN = – 20dBV
→ – 70dBV
output level difference.
Input condition 1,1
Connect the pertinent input to GND,2
VIN = – 15.7dBV
→ – 40.7dBV
output level difference.
Resistance value connected between pins 13 and
36 and VEE. (when VCCS and VEES applied)
VIN = – 70dBV
OUTPUT: NA PB OUT
VIN = – 70dBV
VIN = – 70dBV,1
Rg = 1k
Ω,2
SP MODE
EP MODE
SP MODE
EP MODE
Resistor connected between pin 49 and GND.
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions


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